The Official Online RBS 6 Nations Store is open. The store has everything you need to get behind your team during the RBS 6 Nations, plus the store is now fully stocked with a much wider range of rugby merchandise.
They were also made to hold on for victory against Wales in the opening match of their northern hemisphere tour last weekend.
But Blair believes Scotland face an even tougher challenge on Saturday than that provided by New Zealand the previous week, when his side were beaten 32-6 at Murrayfield.
He said: “The quality of the South African team is exceptional.
“I think it’s stronger than the one that won the World Cup last year and it’s a really impressive outfit that we’re playing against.
“You kind of forget about their previous performances.
“You look at the quality of the team and look at what they’re capable of doing.
“I thought in the first 10-15 minutes against Wales, they were outstanding.
“Wales did well to get back into the game but there’s a real threat throughout their team - the back row in particular - and it’s going to be a hard contest on Saturday.”
Blair expects South Africa to pose slightly different questions to All Blacks.
“The way the South Africans defend is typically a blitz defence, up in the face,” he said.
“So it’s going to be important to us how we manage the game, our decision-making on the pitch.
“They kicked a hell of a lot against Wales and they play with a pressure game. They give you the ball and say, ‘let’s see what you can do’.
“It’s definitely a different challenge and in many ways a harder challenge.”